(c) Dr Cherisse Du Preez, some rights reserved (CC BY-NC), uploaded by Dr Cherisse Du Preez · cc-by-nc
Lamna
Sign in to saveLamna is a genus of mackerel sharks in the family Lamnidae, containing two extant species: the porbeagle (L. nasus) of the North Atlantic and Southern Hemisphere, and the salmon shark (L. ditropis) of the North Pacific.
Species
mackerel sharks
GENUS
- KingdomAnimalia
- PhylumChordata
- ClassElasmobranchii
- OrderLamniformes
- FamilyLamnidae
Lamna est un genre de requins. Liste des espèces Lamna ditropis Hubbs and Follett, 1947 -- Requin-taupe saumon Lamna nasus (Bonnaterre, 1788) -- Requin taupe commun ou maraîche † Lamna (Odontaspis) dubia Agassiz, 1843 Étymologie : du grec lamna ou lamnaes = requin. Voir aussi
via GBIF
Museum specimens
- Specimen records
- 816
- With media
- 251
- Family
- Lamnidae
- Collections
- USNM
- Recorded in
- United States
~1 min read
Encyclopedic overview
4 sectionsContents
- Endothermy
- Species
- See also
- References
Lamna is a genus of mackerel sharks in the family Lamnidae, containing two extant species: the porbeagle (L. nasus) of the North Atlantic and Southern Hemisphere, and the salmon shark (L. ditropis) of the North Pacific.
==Endothermy== The two species of this genus can keep their blood temperature higher above that of the water surrounding them than other cartilaginous fish, with temperature differences recorded up to 15.6 °C. Among fish, blood temperature regulation only occurs in large, fast species – bluefin tuna and swordfish are bony fish with similar abilities.
Excerpted from Wikipedia’s “Lamna” article, available under the CC BY-SA 4.0 licence.